If the hæmorrhage be really profuse, it shows that the separation of the ovum from the uterus must be of considerable extent; and as there will be no chance of preserving the life of the foetus under such circumstances, the expulsion of the ovum is no longer to be avoided, but rather to be promoted; our attention therefore must now be directed to assist the uterus in the evacuation of its contents, with as little injury and danger to the mother as possible. It is, however, no easy matter to decide with certainty when we must give up all hope of preserving the ovum, for a large quantity of blood may be lost without expulsion being a necessary consequence. Uterine contractions may have even taken place, and yet by careful management the mischief may be sometimes averted, and the patient be enabled to go her full time. Even where they have been of sufficient force and duration to dilate the os uteri, we are not justified in discontinuing remedial measures unless the flooding has seriously affected the patient's strength, and the ovum be actually projecting through the os uteri. "We might often prevent abortion (says Baudelocque) if we were perfectly acquainted with its cause, even when the labour is already begun. A very plethoric woman felt the pains of childbirth towards the seventh month of her pregnancy, and the labour was very far advanced when I was called to her assistance, since the os uteri was then larger than half a crown; two little bleedings restored a calm, so much that the next day the orifice in question was closed again, and the woman went the usual time. Food of easy digestion prudently administered quieted a labour not less advanced in another woman, where it was suspected to be the consequence of a total privation of every species of nourishment for several successive days. Delivery did not take place till two months and a half afterwards, and at the full time. Emollient glysters and a very gentle cathartic procured the same advantage to a third woman, in whom labour pains came on between the sixth and seventh months of pregnancy, after a colic of several days' continuance, accompanied with diarrhoea and tenesmus." (_Baudelocque_,) § 2232. Nor is it always easy to decide whether it be the ovum or not which we feel protruding through the os uteri. "When the abortion is in the second or third month, the practitioner must bear in mind that it may have been retention of the menses, and, therefore, what he feels in the os uteri may either be an ovum or a coagulum of blood. To decide this point he must keep his finger in contact with the substance lying in the os uteri, and wait for the accession of a pain (for where clots come away, pains like those of labour are present,) and ascertain whether the presenting mass becomes tense, advances lower, and increases somewhat in size; this will be the case where it is the ovum pressing through the os uteri. On the other hand, if